Dashed left edge = started before October 1866 ·
Dashed right edge = ongoing beyond October 1866
Events in October 1866 1
1866Venetia annexed to the Kingdom of ItalyAustria cedes Venetia after the Third Italian War of IndependenceUnder the Treaty of Vienna, Austria transferred Venetia to France, which passed it to Italy; a plebiscite confirmed the region's union with the Italian kingdom. The annexation was a major step in the unification of Italy, though Rome remained outside its borders.